<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script type="text/javascript">
			/*
			  表达式1;
			  do{
			     语句;
			     表达式3;
			  }while(条件表达式2);
			*/
			var a = 0;
			do {
				console.log(a);
				a++;
			} while (a < 3);
		</script>
	</head>
	<body>
	</body>
</html>
